<template>
  <div>
    <el-dialog
      :title="dialogInfo.isAdd ? '添加商品管理' : '编辑商品管理'"
      :visible.sync="dialogInfo.isShow"
      :before-close="cancel"
      center
      @opened="openEvent"
    >
      <el-form :model="goodsInfo" :rules="rules" ref="goodsInfo">
        <el-form-item
          label="一级分类"
          :label-width="formLabelWidth"
          prop="first_cateid"
        >
          <el-select
            @change="changeCate(false)"
            v-model="goodsInfo.first_cateid"
            placeholder="请选择"
          >
            <el-option
              v-for="item in catelist"
              :key="item.id"
              :label="item.catename"
              :value="item.id"
            >
            </el-option>
          </el-select>
        </el-form-item>
        <el-form-item
          label="二级分类"
          :label-width="formLabelWidth"
          prop="second_cateid" 
        >
          <el-select v-model="goodsInfo.second_cateid" placeholder="请选择">
            <el-option
              v-for="item in secondArr"
              :key="item.id"
              :label="item.catename"
              :value="item.id"
            >
            </el-option>
          </el-select>
        </el-form-item>
        <el-form-item
          label="商品名称"
          :label-width="formLabelWidth"
          prop="goodsname"
        >
          <el-input v-model="goodsInfo.goodsname" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item
          label="商品价格"
          :label-width="formLabelWidth"
          prop="price"
        >
          <el-input v-model="goodsInfo.price" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item
          label="市场价格"
          :label-width="formLabelWidth"
          prop="market_price"
        >
          <el-input
            v-model="goodsInfo.market_price"
            autocomplete="off"
          ></el-input>
        </el-form-item>
        <el-form-item label="图片" :label-width="formLabelWidth">
          <el-upload
            action="#"
            list-type="picture-card"
            :on-preview="onPreview"
            :on-remove="handleRemove"
            :auto-upload="false"
            :on-change="onChange"
            :file-list="fileList"
            :limit="1"
            :on-exceed="onExceed"
          >
            <i class="el-icon-plus"></i>
          </el-upload>
          <el-dialog :visible.sync="dialogVisible">
            <img width="100%" :src="dialogImageUrl" alt="" />
          </el-dialog>
        </el-form-item>
        <el-form-item
          label="商品规格"
          :label-width="formLabelWidth"
          prop="specsid"
        >
          <el-select
            v-model="goodsInfo.specsid"
            placeholder="请选择"
            @change="changeSpecs(false)"
          >
            <el-option
              v-for="item in specslist"
              :key="item.id"
              :label="item.specsname"
              :value="item.id"
            >
            </el-option>
          </el-select>
        </el-form-item>
        <el-form-item
          label="规格属性"
          :label-width="formLabelWidth"
          prop="specsattr"
        >
          <el-select
            multiple
            v-model="goodsInfo.specsattr"
            placeholder="请选择"
          >
            <el-option
              v-for="item in specsArr"
              :key="item"
              :label="item"
              :value="item"
            >
            </el-option>
          </el-select>
        </el-form-item>
        <el-form-item label="是否新品" :label-width="formLabelWidth">
          <el-radio v-model="goodsInfo.isnew" :label="1">是</el-radio>
          <el-radio v-model="goodsInfo.isnew" :label="2">否</el-radio>
        </el-form-item>
        <el-form-item label="是否热卖" :label-width="formLabelWidth">
          <el-radio v-model="goodsInfo.ishot" :label="1">是</el-radio>
          <el-radio v-model="goodsInfo.ishot" :label="2">否</el-radio>
        </el-form-item>
        <el-form-item label="商品描述" :label-width="formLabelWidth">
          <div id="editor"></div>
        </el-form-item>
        <el-form-item label="状态" :label-width="formLabelWidth">
          <el-switch
            v-model="goodsInfo.status"
            active-color="#13ce66"
            inactive-color="#ff4949"
            :active-value="1"
            :inactive-value="2"
          >
          </el-switch>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click="cancel">取 消</el-button>
        <el-button type="primary" @click="confirm">确 定</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
//引入封装好的接口
import { getGoodsAdd, getGoodsInfo, getGoodsEdit } from "../../request/api";
import { mapActions, mapGetters } from "vuex";
//引入下载好的编辑器
import E from "wangeditor";
export default {
  data() {
    return {
      goodsInfo: {
        first_cateid: "", //一级分类编号
        second_cateid: "", //二级分类编号
        goodsname: "", //商品名称
        price: "", //商品价格
        market_price: "", //市场价格
        img: "", //商品图片（文件）
        description: "", //商品描述
        specsid: "", //商品规格编号
        specsattr: "", //商品规格属性
        isnew: 1, //是否新品1是2不是
        ishot: 1, //是否热卖1是2不是
        status: 1, //状态1正常2禁用
      },
      formLabelWidth: "120px", //label宽度
      //dialogVisible 用于控制图片预览的显示隐藏
      dialogVisible: false,
      //预览时调用的图片地址
      dialogImageUrl: "",
      fileList: [], //用于图片回显
      //规则验证
      rules: {
        goodsname: [
          { required: true, message: "请输入商品名称", trigger: "blur" },
          {
            min: 2,
            max: 15,
            message: "长度在 2 到 15 个字符",
            trigger: "blur",
          },
        ],
        price: [{ required: true, message: "请输入商品价格", trigger: "blur" }],
        market_price: [
          { required: true, message: "请输入市场价格", trigger: "blur" },
        ],
        first_cateid: [
          { required: true, message: "请选择一级分类", trigger: "change" },
        ],
        second_cateid: [
          { required: true, message: "请选择二级分类", trigger: "blur" },
        ],
        specsid: [
          { required: true, message: "请选择商品规格", trigger: "change" },
        ],
        specsattr: [
          { required: true, message: "请选择规格属性", trigger: "blur" },
        ],
      },
      //二级分类数组
      secondArr: [],
      //定义规格属性值数组
      specsArr: [],
      //定义一个属性 用来接收富文本编辑器的属性和方法
      editor: null,
    };
  },
  computed: {
    ...mapGetters({
      catelist: "cate/getCateList",
      specslist: "specs/getSpecsList",
    }),
  },
  mounted() {
    //组件一加载就调用分类接口
    if (this.catelist.length == 0) {
      this.getCate();
    }
    if (this.specslist.length == 0) {
      this.getSpecs();
    }
    console.log("挂载了。。。。");
  },
  props: ["dialogInfo"],
  methods: {
    //封装一个打开弹框触发的事件
    openEvent() {
      console.log("弹框已打开。。。。");
      // 注意点：一定要先有弹框，才能找到弹框的节点
      //创建编辑器
      this.editor = new E("#editor");
      //创建富文本编辑器视图
      this.editor.create()
      //设置的描述信息，如果没有内容，双向数据绑定  description就是空，如果有值它就是数据库返回的内容
      this.editor.txt.html(this.goodsInfo.description)
    },
    //封装一个切换一级分类获取二级分类的事件
    changeCate(n) {
      let index = this.catelist.findIndex(
        (item) => item.id == this.goodsInfo.first_cateid
      );
      this.secondArr = this.catelist[index].children;
      //清空二级分类的双向数据绑定值
      // 如果不是回显就是切换就清空，否则就不清空
      if (!n) {
        this.goodsInfo.second_cateid = "";
      }
    },
    changeSpecs(n) {
      let index = this.specslist.findIndex(
        (item) => item.id == this.goodsInfo.specsid
      );
      this.specsArr = this.specslist[index].attrs;
      if (!n) {
        this.goodsInfo.specsattr = [];
      }
    },
    ...mapActions({
      getCate: "cate/getCateListAction",
      getSpecs: "specs/getSpecsListAction",
    }),
    //文件限制方法
    onExceed(files, fileList) {
      this.$message.warning(
        `当前限制选择 1 个文件，本次选择了 ${
          files.length
        } 个文件，共选择了 ${files.length + fileList.length} 个文件`
      );
    },
    //预览的回调函数
    onPreview(file) {
      console.log(file, "文件");
      //得到文件地址之后，把它赋值给要显示的属性
      this.dialogImageUrl = file.url;
      //打开图片预览弹框
      this.dialogVisible = true;
    },
    //移除触发的钩子函数
    handleRemove(file, fileList) {
      console.log(file, "移除", fileList);
    },
    //文件发生变化触发的回调函数
    onChange(file, fileList) {
      console.log(file, "文件详情，change时候");
      //把文件详情赋值给图片地址
      this.goodsInfo.img = file.raw;
    },
    ...mapActions({
      getCount: "goods/getCountAction",
      getGoodsList: "goods/getGoodsListAction",
    }),
    //封装一个取消事件
    cancel() {
      //去改变父组件的isShow的状态
      this.$emit("cancel", false);
      //调取清空事件
      this.reset();
    },
    //封装一个清空事件
    reset() {
      this.goodsInfo = {
        first_cateid: "", //一级分类编号
        second_cateid: "", //二级分类编号
        goodsname: "", //商品名称
        price: "", //商品价格
        market_price: "", //市场价格
        img: "", //商品图片（文件）
        description: "", //商品描述
        specsid: "", //商品规格编号
        specsattr: "", //商品规格属性
        isnew: 1, //是否新品1是2不是
        ishot: 1, //是否热卖1是2不是
        status: 1, //状态1正常2禁用
      };
      //调用清空验证的方法
      this.$refs.goodsInfo.resetFields();
      this.fileList = [];
      //关闭弹框，请销毁富文本
      this.editor.destroy()
    },
    //封装一个查询一条数据的接口
    lookup(id) {
      getGoodsInfo({ id }).then((res) => {
        if (res.code == 200) {
          this.goodsInfo = res.list;
          //对图片进行数据回显
          this.fileList = this.goodsInfo.img
            ? [{ url: this.$http + this.goodsInfo.img }]
            : [];
          this.goodsInfo.id = id;
          //针对于规格属性值进行数据格式转化，后端提供的是字符串，我们需要数组
          this.goodsInfo.specsattr = this.goodsInfo.specsattr.split(",");
          this.changeCate(true);
          this.changeSpecs(true);
    
        } else {
          this.$message.error(res.msg);
        }
      });
    },
    //封装一个确定事件
    confirm() {
      this.$refs.goodsInfo.validate((valid) => {
        if (valid) {
          //商品的规格属性需要字符串格式，而目前我们的数据格式是[],对入参进行数据格式转化
          this.goodsInfo.specsattr = this.goodsInfo.specsattr.join(",");
          this.goodsInfo.description = this.editor.txt.html()
          if (this.dialogInfo.isAdd) {
            // console.log(this.editor.txt.html(),'富文本编辑器的内容');
            // console.log(this.goodsInfo,'商品的表单');
            getGoodsAdd(this.goodsInfo).then((res) => {
              if (res.code == 200) {
                this.cancel();
                this.getCount();
                this.getGoodsList();
                this.$message.success(res.msg);
              } else {
                this.$message.error(res.msg);
              }
            });
          } else {
            getGoodsEdit(this.goodsInfo).then((res) => {
              if (res.code == 200) {
                this.cancel();
                this.getCount();
                this.getGoodsList();
                this.$message.success(res.msg);
              } else {
                this.$message.error(res.msg);
              }
            });
          }
        } else {
          this.$message.error("验证失败");
          return false;
        }
      });
    },
  },
};
</script>

<style scoped></style>
